code: def decode(self, idx, indicate_oov=False):
      if not self._idx2word.get(idx):
          raise ValueError(
              "Error idx: %d. Vocabulary should include oovs here."
              % idx
          )
      if not indicate_oov or idx < self.vocab_size:
          return self._idx2word[idx]
      else:
          return self._idx2word[idx] + "(o)"
  
imports: import logging
  import json
  import numpy
  from collections import OrderedDict
  from .None import ontology
label_desc: Use image node_id 13 for calling the Vocab obj's underlying member method code with example usage: obj.decode(idx, indicate_oov) and returns: self, unknown